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Do I need to install MySQL Server on client machine, the database is used (Read, Write, Delete) by Python script I wrote?

I have written a python script that uses the MySQL Connector for Python to read, write and update the database. Do I need to install MySQL server on the client machine (Windows) too to run the program or do I just need to make sure that the database is present in the path used by the script? I tried finding guidance on Google and here but couldn't find what I needed.

No you don't need to install MySQL Server on a client machine. By definition client machine means you don't have the DB/Server there. Where is this DB allocated? You show have an IP or a domain/subdomain address where the DB is actually hosted.

How to connect oracle database in python irrespective of operating system

I'm trying to write a python script using cx_oracle module for perform oracle database connection. But during the execution, I found it needs oracle instant client to establish a connection. Currently, I'm developing the script in ubuntu but there is a chance to run the same in windows. So I'm confused about the implementation. Could someone please suggest the best way to connect oracle database irrespective the platform

You will always need an OS-specific library or client of some kind. Either the Oracle Instant Client or a Java JDK/JDBC library or both. If you want OS-independence then you would need to interact with the DB through REST calls or something like that instead of making a persistent connection. Otherwise you have to interact with the OS networking stack at some point, which requires OS-specific libraries.

Python Oracle - How to use 2 oracle clients

I need to run a django 2.1 project in a server that have an Oracle Client version 10.
But when I try to runserver I get this error:
Oracle client Library must be in version 11.2 or higher
I did some research and the obvious solution was to update the Oracle. But I can't do that because the server runs some applications that only works with Oracle Client 10.
One thing that I tought is to run two Oracle Library Clients. I did some research, one of the answers that I found:
how to set oracle client library path in python when multiple oracle client version installed
But, it's on Linux and I'm on a Windows Server 2012 R2.
How could I run 2 of these Oracle Clients?
Please, could you help me?

Oracle client ver 11.2.0.4 should be able to connect to both 10g and 12c database.
Also check this answer about SQLNET.ALLOWED_LOGON_VERSION parameter.

How to Sync MySQL with python?

Im setting a VM.
Both host and VM machine have Mysql.
How do keep the VM Mysql sync'd to to the host Mysql.
Host is using MYsql 5.5 on XP.
VM is Mysql 5.1 on Fedora 14.
1) I could DUMP to "shared," Restore. Not sure if this will work.
2) I could network Mysql Host to Mysql VM. Not how to do this
How would I do this with python 2.7?
I dont want them in sync after set-up phase. But, maybe sync some tables or SP occasionly on-rewrites. After I build out Linux Env. I would like to be able to convert V2P and have a dual-boot system.

You can use mysqldump to make snapshots of the database, and to restore it to known states after tests.
But instead or going into the complication of synchronizing different database instances, it would be best to open the host machine's instance to local network access, and have the applications in the virtual machine access that as if it was a remote server. Overall performance should improve too.
Even if you decide to run different databases for the host and the guest, run then both on the host's MySQL instance. Performance will be better, configuration management will be easier, and the apps in the guest will be tested against a realistic deployment environment.

Why are you using Python? Just use the built in replication abilities: http://dev.mysql.com/doc/refman/5.5/en/replication.html

Do you want it synced in realtime?
Why not just connect the guest's mysql process to the host?

Connecting to MS SQL Server using python on linux with 'Windows Credentials'

Is there any way to connect to an MS SQL Server database with python on linux using Windows Domain Credentials?
I can connect perfectly fine from my windows machine using Windows Credentials, but attempting to do the same from a linux python with pyodbs + freetds + unixodbc
>>import pyodbc
>>conn = pyodbc.connect("DRIVER={FreeTDS};SERVER=servername;UID=username;PWD=password;DATABASE=dbname")
results in this error:
class 'pyodbc.Error'>: ('28000', '[28000] [unixODBC][FreeTDS][SQL Server]Login incorrect. (20014) (SQLDriverConnectW)')
I'm sure the password is written correctly, but I've tried many different combinations of username:
DOMAIN\username
DOMAIN\\username
or even
UID=username;DOMAIN=domain
to no avail. Any ideas?

As of at least March 2013, this seems to work out of the box with FreeTDS. I specified the TDS protocol version for good measure--not sure if that makes the difference:
connStr = "DRIVER={{FreeTDS}};SERVER={0};PORT=1433;TDS_Version=7.2;UID={1}\\{2};PWD={3}".format(hostname, active_directory_domain, username, password)
Integrated authentication also appears to be supported in Microsoft's official driver for linux: http://msdn.microsoft.com/en-us/library/hh568450.aspx . I'm not sure how many Linux distributions it actually works on or how much of the source is available. They explicitly mention RHEL 5 and 6 and some dependencies on the download page.

As pointed out in one of the comments, this answer is quite stale by now. I regularly and routinely use GSSAPI to authenticate from Linux to SQL Server 2008 R2 but mostly with the EasySoft ODBC manager and the (commercial) EasySoft ODBC SQL Server driver.
In early 2009, a colleague and I managed to connect to a SQL Server 2005 instance from Solaris 10 using GSSAPI (Kerberos credentials) using DBB::Perl over a FreeTDS build linked against a particular version of the MIT kerberos libraries. The trick was -- and this is a little bit difficult to believe but I have verified it by looking through the FreeTDS source code -- to specify a zero-length user_name. If the length of the user_name string is 0 then the FreeTDS code will attempt to use GSSAPI (if that support has been compiled in). I have not been able to do this via Python and pyodbc as I could not figure out a way of getting ODBC to pass down a zero-length user_name.
Here in the perl code .. there are multiple opportunities for breakage wrt configuration files such as .freetds.conf etc. I seem to recall that the principal had to be in uppercase but my notes seem to be in disagreement with that.
$serverprincipal = 'MSSQLSvc/foo.bar.yourdomain.com:1433#YOURDOMAIN.COM';
$dbh = DBI->connect("dbi:Sybase:server=THESERVERNAME;kerberos=$serverprincipal", '', '');
You will have to know how to use the setspn utility in order to get the SQL Server server to use the appropriate security principal name.
I do not have any knowledge of the kerberos side of things because our environment was set up by an out and out Kerberos guru and has fancy stuff like mutual trust set up between the AD domain that the SQL Server is running in and the Kerberos domain that my client was running in.
There is some code http://code.google.com/p/libsqljdbc-auth/ which does GSSAPI authentication from Linux to SQL Server but it is Java only. The author (who seems to know his stuff) also has contributed a similar patch to the jTDS project which works with more recent versions of Java that have GSSAPI built in.
So the pieces are all there, it is just a big tangled mess trying to get them all to work together. I found the pyodbc to unixODBC to FreeTDS odbc to TDS integration pretty hard to trace/debug. The perl stuff because it was a pretty thin wrapper on top to CT-Lib was much easier to get going.

Probably a bit too late to help you out - but I encountered the same issue. At the time of writing, the latest version of pyodbc allows me to login with windows credentials. Just leave the UID field blank in your connection string like so:
cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER=myserverinstance;DATABASE=mydatabase;UID=;PWD=mypassword')
Now this is using your existing windows credentials when you're logged on... not sure how to specify any arb windows domain credentials...

I haven't done it in a while, but I remember the whole unixodbc + FreeTDS + pyodbc thing being a little tricky. However, it can be done, and once setup it's not that hard.
This website provides very good instructions:
http://www.pauldeden.com/2008/12/how-to-setup-pyodbc-to-connect-to-mssql.html (archived copy on Web Archive)
Also, in my experience pyodbc had issues compiling/running on 64 bit Linux machines. Because of that we eventually used ceODBC. ceODBC isn't quite as stable as pyodbc (encountered more unexpected bugs than in pyodbc when running in python prorgram), but it is very easy to get up and running on Linux 64 bit.

I don't believe you'll be able to log in to a windows domain account in this way. You need to set up a user in sql directly for this manner of passing credentials.